Search Criteria
Filter by the 4 Cs and more to quickly find the diamonds that match your needs.
The Smartest Way
to Buy Diamonds
Easily source the stones that are the best fit for your needs
Why Buy with UNI?
Wide Variety of Diamonds
Gain access to over 1.3 million diamonds from 300+ trusted suppliers, all live and ready for purchase. With no minimum order, you have the flexibility to purchase exactly what you’re looking for, whether you're buying one stone or many.
Save Time
Eliminate delays by quickly sourcing the diamonds you need without the usual back-and-forth with multiple suppliers. Trade with UNI to make one consolidated payment for stones worldwide, all in one place.
Can’t Go Wrong With UNI
Guarantee precision with our physical QC process. Per your request, every diamond will be checked for quality and authenticity, ensuring it meets your exact standards with every purchase.
Maximize Savings
Get the best cash prices and enjoy volume discounts generated by other buyers from the very first stone, ensuring you save more with every purchase.
Make Informed Decisions
Leverage real-time insights to make smarter buying decisions with the latest market data at your fingertips.
Never Leave Customers Hanging
Trade diamonds risk-free with our memo option. Access a wide selection of diamonds, get stones delivered the next day, and showcase them to your customers, with no need to hold extra stock.
See It, Buy It, Get It.
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Analyze Data
Use real-time analytics to review prices and track trends.
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Explore the Inventory
Dive into our collection of over 1.3 million diamonds to find exactly what you're looking for.
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Complete Your Purchase
Enjoy a seamless and secure buying experience. With transparent pricing, no hidden fees, easy bidding options, and a thorough QC process, purchasing your stones has never been easier.
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Secure Delivery with Malca-Amit
Receive your diamonds quickly and safely with our trusted logistics partner, Malca-Amit.
Buy Smarter With Data
Data-Driven Buying Decisions
Buy smarter with detailed market data, including average prices, price per carat analysis, and supply trends, all designed to give you the competitive edge you need to make informed decisions.
Smart Price Comparisons
Enhance your buying with the GIA Price Check. Enter a GIA certificate number to validate prices against the market, and instantly compare similar stones and discover more options, ensuring you always know what the prices are in the market.
Real-Time Supply Monitoring
Stay ahead of the curve by monitoring real-time supply fluctuations for different diamond items, anticipate market shifts, and strategically plan your purchases.
Be the First to Know
Receive instant notifications when you have an order you can't fill. Be the first to find the stone you’re looking for and secure a bargain, giving you a competitive edge.
Focus on High Demand
Maximize your profits by tracking the performance and tradability of items, analyzing turnaround rates, and making data-driven purchasing decisions.
Ready to Elevate
Your Diamond
Sourcing Experience?
Leave your details and book a demo!